How to remove malware in .ost file in Outlook?

Andy King 61 Reputation points
2022-03-06T04:21:54.283+00:00

Hello,

Our System Center Endpoint Protection has detected one malware in Outlook ".ost" file on one of the workstations.
Here is the report:

"Malware Name: Exploit:O97M/CVE-2017-11882!rfn; 
 Remediation action: Quarantine; 
 Action status: Succeeded."

Is it safe to use the workstation now? Do I need to rescan the workstation again offline with Malwarebytes, MS Windows Security or other apps?

Please tell me how to scan the Outlook ".ost" file for malware? Thank you very much.

Andy

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Accepted answer
  1. Reza-Ameri 16,836 Reputation points
    2022-03-06T16:02:05.67+00:00

    What it shows is action is taken and you are safe now.
    You may run a full scan with endpoint manager just in case.
    This is associated with a vulnerability in Microsoft Office so make sure update your Microsoft Office using Windows Update.

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2 additional answers

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  1. T. Kujala 8,706 Reputation points
    2022-03-06T05:11:23.51+00:00

    Hi @Andy King ,

    Have you change to create a new Outlook profile?

    Then It creates a new ost file and you can delete the old one.

    https://support.microsoft.com/en-us/office/create-an-outlook-profile-f544c1ba-3352-4b3b-be0b-8d42a540459d

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  2. Andy King 61 Reputation points
    2022-03-09T18:25:41.823+00:00

    Thanks, TKujala and Reza-Ameri! I will run a full scan before using the computer. Thanks again.

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